In the 1880 Census, Mary M. Hughey is listed as the granddaughter to Isaac Hughey and Frances Jane "Fannie" (Hampton) Hughey. Two of Isaac's sons--George Lafayette Hughey and Isaac M. Hughey--were born in Limestone County, Alabama, and could possibly be the father. Isaac's three other sons were born in Tennessee; their names were John A., James H., and Samuel Ezekiel. I have the name of George's wife as Finetta Ann Anderson. Isaac Hughey is Hughey-645 and Fannie (Hampton) Hughey is Hampton-2314. I have not added a Mary M. Hughey wikitree profile as of yet.